Car-ventilator.



PATENTBD SEPT. 26, 1905.

T H. GARLAND.

GAR VENTILATOR.-

APPLICATION FILED NOV. 15, 1904.

2 SHEETS-"SHEET 1 ATTORNEYS WITNESSES."

PATENTED SEPT. 26, 1905.

T. H. GARLAND.

UAR VENTILATOR.

APPLIUATIOH FILED NOV.15, 1904.

2 SHEETS-SHEET 2.

IIVVENTOR WITNESSES.

ATTOk/VEYS UNITED STATES PATENT OFFICE.

Tl-IOMAS HENRY GARLAND, OF CHICAGO, ILLINOIS.

CAR-VENTILATOR.

Application filed November 15, 1904. Serial No. 232,825.

To all whom it may concern:

Be it known that I, THonAs HENRY GAR- LAND, a citizen of the UnitedStates, and a resident of Chicago, inthe county of Cook and State ofIllinois, have invented a new and Improved Car-Ventilator, of which thefollowing is a full, clear, and exact description.

My invention relates to a ventilator for cars.

The objects thereof are to provide means for securing efficientventilation irrespective of the direction of motion of the car and atthe same time to prevent the possibility of the entrance of 'rain, snow,cinders, 620., through the ventilator.

Further objects of the invention will appear in the course of thesubjoined description.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a transverse sectional view of a portion of a car, showingone form of my invention as applied thereto, a part of theventilatorbeing shown in section. Fig. 2 is a sectional view on the curved line 22 of Fig. 1; and Fig. 3 is a transverse sectional view of arefrigerator-car, showing a form of my invention applied thereto.

Referring first to Figs. 1 and 2, an opening is made in the deck a ofthe car, as shown at a, and a main conductor 6 is placed along the roof(1 of the car with its inner end in said opening. The outer portion ofthe conductor is preferably curved to conform substantially to the shapeof the roof and in its preferred form is made square in cross-section.The discharge end I) of the conductor is consequently located neartheedge of the roof and faces downward. Therefore rain and snow cannotenter the conductor at this point. The conductor is preferably providedwith a damper b at its inner end. A cowl c is located along the side ofthe deck and on the roof, with its axis parallel with the axis of thecar and substantially perpendicular to the axis of the conductor 1). Itis made flaring at its front end and is provided with a curvedcontracted end 0, leading into the side wall of the conductor b at thepoint 6 This contracted end is curved around into such position that itsopening is directly in the center of the conductor 1) and points towardits outer end I).

Specification of Letters Patent.

Patented Sept. 26, 19M).

tion in which the flared end of the cowl points, it will be obvious thatair will be taken up by the cowl and discharged through the end 0 intothe conductor b. This air will be forced through the conductor from theend of the cowl to the outer end I) of the conductor and will obviouslytake with it air from the other portion of the conductor, which can besupplied only by the entrance of air through the damper 6 It will bereadily understood that this operation will result in the effectiveventilation of the car and that the construction is of such a naturethat foreign substances cannot enter the car. Although cinders can beblown into the cowl, they will be immediately discharged at the outerend of the conductor, and there will be no possibility of their beingintroduced into the car.

In order that the ventilator may work in both directions, it is madedouble and provided with a cowl pointing in each direction. These cowlsmay discharge into separate conductors, as indicated; but it is entirelywithin the scope of my invention to have them discharge into the sameconductor.

It will be observed that a ventilator constructed upon the principle setforth above is very efficient in operation, is free from the objectionof introducing foreign matters into the car, and is very simple inconstruction. Having no moving parts, it cannot easily becomeinoperative, and, being entirely station ary u on the car, it cannotreadily be displace Fig. 3 illustrates one form of my invention asapplied to refrigerator-cars. It could be applied in the same or asimilar manner to fruit and vegetable cars. In this view the roof A isprovided with a perforation A for the main conductor B of theventilator, which slopes along the roof and has an outlet at B. A damperB is provided within the. car. A cowl C of similar structure to thatshown in the other figures is located outside the car and connected withthe conductor B, as described above.

Although I have illustrated and described particular embodiments of myinvention, it will be obvious that the latter is not strictly limited tothe details thereof.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A ventilator having two cowls provided Supposingthe car to travel in the direcwith flaring ends pointing in oppositedirec- ICC tions and each being provided With a contracted curved end,and a pair of conductors into which said contracted ends lead, saidconductors being curved downwardly at their outlet ends.

2. The combination with a car, of a ventilator having a conductorleading from the deck of the car and curving along the roof thereof, anda cowl extending longitudinally of the car and located on the roofthereof, said cowl having a contracted end entering the conductor andextending in an outward direction from the body of the cowl.

3. The combination with a car, of a ventilator having a conductorleading from its deck and curving along the roof of the car so

